Source Code : Override computeValue from DoubleBinding

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Override computeValue from DoubleBinding

 

 
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.beans.binding.DoubleBinding;
 
public class Main {
 
    public static void main(String[] args) {
 
        final DoubleProperty a = new SimpleDoubleProperty(1);
        final DoubleProperty b = new SimpleDoubleProperty(2);
        final DoubleProperty c = new SimpleDoubleProperty(3);
        final DoubleProperty d = new SimpleDoubleProperty(4);
 
        DoubleBinding db = new DoubleBinding() {
 
            {
                super.bind(a, b, c, d);
            }
 
            @Override
            protected double computeValue() {
                return (a.get() * b.get()) + (c.get() * d.get());
            }
        };
 
        System.out.println(db.get());
        b.set(3);
        System.out.println(db.get());
    }
}

   
  

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